I decided to buy the Meprolight night sights.
I've learned a lot since I started trying to solve this problem about adding night sights to my 92F.
I've learned that Meprolight Tru-Dot Tritium Night Sights are made in Israel . They supply big Military and Police contracts all over the world.
Their sole distributor in USA is Kimber and if you buy a Kimber with night sights on it - they are Meprolight sights.
I called around to several gunsmiths in the Dallas area and visited one that was doing a 92F night sight job right now.
The installation looked great and the Meprolight sights looked larger and brighter to me (not scientific, took my carry gun w/ Trijicon & the worked on 92 F into a closet )
So I wanted to share this with everyone so they can make a informed decision and buy what they want.